Carbureter.



G. O. HEDSTROM. I GARBURETER.

APPLICATION FILED JAN.19, i907.

918,3?Q8 Patented Jan.19,1909.

I s SHEETS-SHEETL G. U. EEDSTRUM.

GARBUBETER.

APPLICATION FILED JAN. 1s, 1907.

' 7 that engages or rests against the upper end of the yoke 6. Upon the rotation of the shaft 5, the cam 7 will forcethe baffle plate 4 downward against the tension of the spring 3 and vary the size of the annular passageway or opening 9 so that the velocity of the in-coming current of air will be increased in passing through the constricted passage-way.

'12 designates a spring mounted in the upper end of the cylinder 6 and hears at itslower end on the horizontal shoulder 13 of a second moval 1e hafiie- 'late 14 which rests at its lower end on the rib e of the cylindrical dotted lines) and communicating with this hole 17 are a series of holes 18.

19 designates a series of channels or passage-ways cut in the inclined surface of the plug 16 for permitting the gasolene vapor to escape through the upper end of the atomizer into the body portion of the caroureter.

The gasolcne passes through the strainer it into and through the passageway in the radial arm b into the interior of the atomizer c as indicated'hy the arrow 21, from which point it passes into the opening 17 and out through the holes 18 and channel-ways 19 into the liody of the carltureter, it being understood that the air which enters through the mouth-piece 22 in the lower part ot'the ear. ureter is drawn in l y the suction of the engine through the annular passage-way 9 and past the upper. end of the atomizer'c where it passes in: close proximity to the passage-ways 19 wherclty the vapor of the as'olene is thoroughly intermixed with the 1ncoming air. From this point the mixture of air and gasoloneis drawn upward, as indicated l y the arrow 23, through the cylindrical throttle 24 and out through the discharge-pipe 25 that is connected with the upper enoof the carl ureterx The action which has lcen descri 'ed is the normal operation of the carhurcter but should a greater suction c'll'cct occur on account of an increased speed: of the engine, the increased suction will cause the loosely mounted t'al'lie-plate 14 to rise and increase the size of the opening 9 lrctween the hallleplates 4 and 14 as readily understood. This feature of automatically increasing the supply'of fuel in proportion as the suction increases,. I considcr'a most important one. and as far .as I am aware it has not seen heretofore successfully accomplished, especially for motor-cycles. The automatically movable baffle-plate 14 also provides means for maintaining the mixture constant.

26 designates a bonnet threaded onto the up er'end e at the point 27. 'll the throttle-valve 24, (as 0 early shown in quality of the of the cylinder rically opposite sides with openings 28 and 29 and with solid portions .30 and 31. 'f.

valve 24 by means of the pin 33 (see Rig. 2)

that the throttle valve 24 is wide open, but shouldthe same be rotated so that the solid portion 30 is moved to close the passage-way through the cap 26, the amount of fuel supplied to the engine would be diminished, as readily understood, since the bathe-plate 4 would be elevated thus partially closing the passage-Way 9 and diminishing the'flow of air through the carbureter, (see Fig.2)

In order to adjustably maintain the shaft 5, and consequently'the position of the cam 7 and the yoke-piece 6 (to which the baflie-' plate 4' is connectedl-a spring washer 36 is vplaced on the shaft 5, and between theolosure piece 37 and the handle .58. A nut 39 is threaded onto the shaft 5 to hold the parts in place and to vary theamount oftensionon the washer 36. This construction will main tain'the parts previously mentioned in any fixed. l

'38 is a spring rcssed detent'or pawl 40 that. is adapted to the thumb-nut 41 against the tension of the spring 42, the inner end of this spring-pressed detent being adapted to engage therec e'sses in the cap or closure piece 37, as shown at 43, for the purpose of indicatin the position of the l alile-plate 4, as readi y understood. The piece 37 is locked to thevalve 24 by means of the lug 37 i The air inletor hood 44 is secured in place on the lower end of the atomizer c by means of the nut 45 that is threaded onto the atomizer c, as shown.-.

lower end of the atomizer c 'for closing'thc the gasolene to lie deposited in the lowenparti ofthe atomizer c and readily removed therefrom.

athej. operation or the. carburetor, the.

lie ca -piece supports Figs. 1 and 2,) which is provided at diamet ing 35 therein so that the same-can be suit;

desired position and hold the hafl1e plate-4 105,. Mounted on the opposite end of the handle.

same, and also servestheapurposeof permitting any sediment that may be contained n or cap-piece thatjis" 32 designates an operating piece forithel throttle 24 that is secured to the throttles-f The upper end of the dperating piece is pro- It will Le noticed, on referring to Fig. 1,

e withdrawn or actuated by 46 designates a plug threaded 'into the l or ers asolene flows tlirou 'li the ins Q past the g (3 1 1 needle-rolve it and into the reservoir clnnnl thelever m, as deseriiled. Should the height of the iquid above the opening 18, the float will also rise and through the medium of the lover or close the valve l; and shut oil the flow. After the level. of the liquid drops slightly from use, the iloiit will also drop and open the needlewalre The external air is drawn, by suction, into the hood 4-4 post the arms 3 and'into the interior of the casing or cylinder 15, through the restricted passage-ways 5) .lorined by the lower inclined wall of the iniflio ilate and the inclined wall 15 of the lIuLlG-PiiltG l4 ivitli greatly incrcesed velocity. The iii-r nning air at this point inirwles with tile gasolcne vapor that is drawn tlirougj the passageqvays Q'liy the production oi the partial vacuum, and is thoroughly intermixed with the same. From this )oint, the combined mixture of air and gaso one vapor passes upward through the upper end oi the casing and practically Withintlie spring 12 and through the openings 28 and 29 in the ti'u'cttle-valve 24, to the outletpipe 25 that is connected with the interior of the engine cylinder. The position of the tlirottlc valve 2% having been previously set so to give the requisite amount of opening tlierethrougli by means of the projection 34 the liztille plate in fixed position by means of the detent 40 engaging the depression 43 in the cap-piece 3 The shaft the ports 5 is not in any way connected to 32 or 37, out turns loosely therein when the pval 40 is witlidrawn from the depressions l3,

The operation of my described carlnireter is as follows: The operator first places the spring-pressed detent 40 in one of the holes or depressions 43 in the piece 37 which opere tiori, it will ljre o e-served, rotates simply the shaft 5 and cam 7. The cam 7, according to the direction of rotation, will raise and lower the liafile-plato 4 on the atoinizing nozzle 0. Should the operator then Wish to vary the flow the mixture through the discharge pipe 25, he rotates the projection 34 which turns the piece 32, throttle-valve 2 1, cappiece 37, pawl l0, handle 38, shaft 5, cam 7, and consequently the baffle-plate 4 is moved in unison with the throttle-valve 24., The

movement of the earn 7 causes the lralileplate .1- to rise as the throttle-valve closes, and to descend as tilt-3 throttle ralve opens, wlierelry' the area of the opening 9 is lessened as the tlnottle-valve closes, and increased as the 'tlirot'tle-valveis opened. Should the suction effect increase, ballie-plate l having lzeen pro iously adjust- (2d,) the lraiiegplate 14 will be automatically (the throttle 24 and l l l is, in practice, maintained I l l l I r I l l elevated against the tension of the spring 12 thus increasing the area of the opening 9 l1etween the bot e-pla-tes i and 14 in direct pr portion to tli suction eil'cct oi the engine, the air and gasolene mi:-;- cure at a constant.quality. 'l is purpose of tlic niovali-le delent l0 to var the position the braille-plate -1- to suit the changing atospliericconditions, while the baiileplate automatically maintains lire quality of :ninture oiair and gasolene in accordance with the suction effect.

The elevated position of tie file-plate l4 shown in dotted lines at I l liarile-plate also tlrottle 2i oocnod l. in carburetor cl the Host feed type, an sterilizing nozzle, a double cone shaped Jtt'lilGfUlkLllt aujustalily mounted on said nozzlo, moans ior deflecting the incoming air towards said lJEll'ilG-Plitlfi whereby the veloci y of the same is increased it passes said nozzle,

2. in carburetor of the Host l'ced type, an ate-mixing nozzle provided with ports and communicating with the reservoir thereof, cylindrical eleincnthoving an inclined well, an adjr stable double COBBSlliLPHl element lor deflecting the flow of sir tlirorgli the carbtretcr and located in proximity to the inclincd Wall of the cylindrical element whenby the direction of incoming air may be deiiccted towards the ports of the atoniizing nozzle and the volume of the incoinnig air thereby varied.

In a carburetor, a casing, a cylindrical element mounted therein, a cap-piece SBClJQil to the cylinder, a shaft mounted within the cap-piece and providedwith a cam, an atomizer, a battle-plate movably mounted on the atomizer, a yoke secured thereto and engaging said cam whereby when the shaft is roteted therewith.

4. In a carburetor, a casing, a cylindrical element mounted therein, a cap piece secured to the cylinder, a shaft mounted within the cap-picce and provided "with a earn, an atomizer, an element rnovably mounted on the atomizer, a yoke scarred-thereto and engagn ing' said cam where-by when the shaft is rotated the eleinent will be. moved in unison therewith, a spring encircling the atomizer and engaging the lower end of the movable element wil'icreby when the com is rotated in one d'rection the element is moved, and

rev-fierce and. then wnerebywhen the coin is re tented in 'tlie opposite direction the element is moved by said spring, as described.

in a carburetor,

a centrally disposed atonnzingnozzle,

means for adjusting said baffle-plate, said the ballle-plate will be moved in unison a double coi'iicslly shaped haflloplate movably mounted thereon, and

mews including 5 epling enga" side of the SZLIHG.

6.111 a eerbui'eter, in Jolllbfillzl ilifiil, atomizing nozzle, e deflecting eleme; t men ed thereon, a, throttieweive, Means for moving the throtth-rviiive and d xeting' meat ingunieou, 2- second defies 1*; element smeed Tom said first mentioned eefieeting eiement, and means for permitting the same to rise under an abnormal. suction eiieeia 7 In a eei'bureter in eombii'ietion, an atomizing nozzle, 21 throttle valve, e deflect ing element on said nozzle, 51, second defieetmg element spaced therefrom and efiording passage-Way therebetyeen, tile defleeiiilgeiements ban/111g oppositely d pesed 10-1nec Wells, and means for permitting the 1101-12111 position of said wells to change relative each other, whereby the area of the passe-e is changed, and means for moving one of t e deflecting elements in unison 'Wiih thethroiw t-le Valve.

8. In a sarbureoer, in eoiiibiimtion, a three tie, an atomizer, a movable befiie-pia te H101 lifted on the atomizer, and means for 0'01 ereting the throttle and befiie fizite in amt;-

the iowei" 10. A Gillbulilfil of the fleet feed having in. eeinlmm'bion, 5 :1 etemizi e oeil'ie 11, meeris fo'i:

iiiie emu 1.1 element *1. fleeting eimnged e i 21 mi W m 1 lRCOHihig {UL .1118 Bill means fer perm cyiimineel eiemeeis .to antennae-ai '1 ti? 0 m 1 v said eiement and the seribel. 

